Ventilator
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 17, 1983
Grant Date -
N/A
app pub date -
Jul 16, 1981
filing date -
Nov 26, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ventilator is provided for the supply of untreated exterior air to a room. The ventilator has a valve seat (1), a valve body (2), means for connecting the ventilator to an exterior air duct (4) and operating means (6, 7) for resetting the position of the valve body. Stationary support elements (8) carry the valve body via a coupling (9) of the kind which, on repeated operating impulses from the operating means (6, 7) alternatingly takes the valve body to an outer position and returns it to an inner position. Both these positions are so selected that the inner one corresponds to the minimum demand for ventilation of an empty room while the outer one corresponds to the demand for ventillation with projected use by persons of the room.
First Claim
Family
International Classification(s)
Cited Art Landscape
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